.loading{
  position: fixed;
  width: 100%;
  height: 100%;
  top:0;
  left:0;
  z-index:999;
  background: rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  .circle{
    width: 280px;
    height: 280px;
    background: conic-gradient(#000,#fff,#000);
    border-radius: 50%;
    -webkit-mask-image:radial-gradient(transparent 0,transparent 90px,red 0);
    animation:loading 2s linear infinite;
  }
  .title{
    color:#fff;
  }
}
@keyframes loading{
  0%{
    transform:rotate(0);
  }
  100%{
    transform: rotate(360deg);
  }
}